scholarly journals Stability of crystallographic texture in laser powder bed fusion: Understanding the competition of crystal growth using a single crystalline seed

2021 ◽  
pp. 102004
Author(s):  
Takuya Ishimoto ◽  
Koji Hagihara ◽  
Kenta Hisamoto ◽  
Takayoshi Nakano
Keyword(s):  
Crystal Growth ◽  
Crystallographic Texture ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Single Crystalline ◽  
Powder Bed

scholarly journals Single crystalline-like crystallographic texture formation of pure tungsten through laser powder bed fusion

2022 ◽  
Vol 206 ◽  
pp. 114252
Author(s):  
Tsubasa Todo ◽  
Takuya Ishimoto ◽  
Ozkan Gokcekaya ◽  
Jongyeong Oh ◽  
Takayoshi Nakano
Keyword(s):  
Crystallographic Texture ◽  
Texture Formation ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Pure Tungsten ◽  
Single Crystalline ◽  
Powder Bed

scholarly journals Control of Crystallographic Texture and Mechanical Properties of Hastelloy-X via Laser Powder Bed Fusion

Crystals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1064
Author(s):  
Shinya Hibino ◽  
Tsubasa Todo ◽  
Takuya Ishimoto ◽  
Ozkan Gokcekaya ◽  
Yuichiro Koizumi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Crystallographic Texture ◽  
Lamellar Microstructure ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Hastelloy X ◽  
Single Crystalline ◽  
Powder Bed ◽  
Wide Range

The influence of various laser powder bed fusion (LPBF) process parameters on the crystallographic textures and mechanical properties of a typical Ni-based solid-solution strengthened alloy, Hastelloy-X, was examined. Samples were classified into four groups based on the type of crystallographic texture: single crystalline-like microstructure with <100>//build direction (BD) (<100>-SCM), single crystalline-like microstructure with <110>//BD (<110>-SCM), crystallographic lamellar microstructure (CLM), or polycrystalline microstructure (PCM). These four crystallographic textures were realized in Hastelloy-X for the first time here to the best of our knowledge. The mechanical properties of the samples varied depending on their texture. The tensile properties were affected not only by the Schmid factor but also by the grain size and the presence of lamellar boundaries (grain boundaries). The lamellar boundaries at the interface between the <110>//BD oriented main layers and the <100>//BD-oriented sub-layers of CLM contributed to the resistance to slip transmission and the increased proof stress. It was possible to control a wide range of crystallographic microstructures via the LPBF process parameters, which determines the melt pool morphology and solidification behavior.

scholarly journals Role of laser powder bed fusion process parameters in crystallographic texture of additive manufactured Nb-48Ti alloy

2021 ◽  
Author(s):  
Rafael de Moura Nobre ◽  
Willy Ank de Morais ◽  
Matheus Tavares Vasques ◽  
Jhoan Guzmán ◽  
Daniel Luiz Rodrigues Junior ◽  
...  
Keyword(s):  
Process Parameters ◽  
Crystallographic Texture ◽  
Fusion Process ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed

Single-crystalline-like stainless steel 316L with different geometries fabricated by laser powder bed fusion

2020 ◽  
Vol 5 (1) ◽  
pp. 41-49
Author(s):  
Xianglong Wang ◽  
Jose Alberto Muñiz-Lerma ◽  
Oscar Sanchez-Mata ◽  
Sıla Ece Atabay ◽  
Mohammad Attarian Shandiz ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Stainless Steel 316L ◽  
Single Crystalline ◽  
Powder Bed

scholarly journals Unique crystallographic texture formation in Inconel 718 by laser powder bed fusion and its effect on mechanical anisotropy

2021 ◽  
pp. 116876
Author(s):  
Ozkan Gokcekaya ◽  
Takuya Ishimoto ◽  
Shinya Hibino ◽  
Jumpei Yasutomi ◽  
Takayuki Narushima ◽  
...  
Keyword(s):  
Crystallographic Texture ◽  
Inconel 718 ◽  
Mechanical Anisotropy ◽  
Texture Formation ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed

Crystallographic texture and velocities of ultrasonic waves in a Ni-based superalloy manufactured by laser powder bed fusion

2020 ◽  
Vol 169 ◽  
pp. 110607
Author(s):  
Amal Khabouchi ◽  
Pascal Ventura ◽  
Nicolas Leymarie ◽  
Alain Hazotte ◽  
Lionel Germain
Keyword(s):  
Crystallographic Texture ◽  
Ultrasonic Waves ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed
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